解:(1)2008+520=2528 | (2)5.01-3.9=1.11 | (3)1.2×0.3=0.36 | (4)100÷10%=1000 | (5)8-= |
(6)= | (7)= | (8)= | (9)2.3×9+2.3=23 | (10)15=15 |
分析:(1)根據(jù)整數(shù)加法計(jì)算方法進(jìn)行計(jì)算,
(2)根據(jù)小數(shù)減法計(jì)算方法進(jìn)行計(jì)算,
(3)根據(jù)小數(shù)乘法計(jì)算方法進(jìn)行計(jì)算,
(4)先把百分?jǐn)?shù)化成小數(shù),再根據(jù)小數(shù)除法計(jì)算方法進(jìn)行計(jì)算,
(5)根據(jù)分?jǐn)?shù)減法計(jì)算方法進(jìn)行計(jì)算,
(6)根據(jù)分?jǐn)?shù)乘法計(jì)算方法進(jìn)行計(jì)算,
(7)根據(jù)分?jǐn)?shù)加法計(jì)算方法進(jìn)行計(jì)算,
(8)根據(jù)分?jǐn)?shù)除法計(jì)算方法進(jìn)行計(jì)算,
(9)根據(jù)乘法分配律進(jìn)行計(jì)算,
(10)根據(jù)分?jǐn)?shù)減法計(jì)算方法進(jìn)行計(jì)算.
點(diǎn)評(píng):本題綜合考查了學(xué)生的計(jì)算能力.